In Stock
Moroccanoil

Overnight Hydrating Leave-in Hair Mask Treatment Serum

4.9 · 422 reviews
4,673 ₽

What it is: An overnight hair mask featuring supercharged hyaluronic acid and vegan snail mucin that leaves hair four times more hydrated.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- FrizzKey Benefits: - Increases hydration four times overnight- Leaves hair touchably soft- Reduces frizz and minimizes split endsHighlighted Ingredients:- Argan Oil: Rich in vitamin E and antioxidants, this natural oil nourishes.- Supercharged Hyaluronic Acid: A blend of seven molecular weights of hyaluronic acid for maximum hydration.- Vegan Snail Mucin: Bio-engineered vegan alternative helps seal the cuticle and lock in moisture.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. What Else You Need to Know: With argan oil, supercharged hyaluronic acid, and vegan snail mucin, Overnight Leave-in Hair Mask delivers intense hydration that lasts for three washes. The weightless formula reduces frizz and leaves hair touchably soft. With no rinsing required, it leaves no residue on your hair or pillow.Clinical Results: Based on instrumental testing after 8 hours: - Increases hydration by 4X overnight- Hair is 3X easier to detangle in the morningBased on an independent lab study:- Hydration lasts for 3 washes

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What it is: An overnight hair mask featuring supercharged hyaluronic acid and vegan snail mucin that leaves hair four times more hydrated.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- FrizzKey Benefits: - Increases hydration four times overnight- Leaves hair touchably soft- Reduces frizz and minimizes split endsHighlighted Ingredients:- Argan Oil: Rich in vitamin E and antioxidants, this natural oil nourishes.- Supercharged Hyaluronic Acid: A blend of seven molecular weights of hyaluronic acid for maximum hydration.- Vegan Snail Mucin: Bio-engineered vegan alternative helps seal the cuticle and lock in moisture.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. What Else You Need to Know: With argan oil, supercharged hyaluronic acid, and vegan snail mucin, Overnight Leave-in Hair Mask delivers intense hydration that lasts for three washes. The weightless formula reduces frizz and leaves hair touchably soft. With no rinsing required, it leaves no residue on your hair or pillow.Clinical Results: Based on instrumental testing after 8 hours: - Increases hydration by 4X overnight- Hair is 3X easier to detangle in the morningBased on an independent lab study:- Hydration lasts for 3 washes

Customer reviews

5.0
verified purchase
Amazing for my fine waves/curls

I have fine 2b-3A hair and my hair lovesss this stuff. I was struggling with my hair feeling super dry and tried a bunch of other products but this one is the winner!!

9/26/2026
5.0
verified purchase
Love love love

Best product ever for dry hair. Doesn’t make your hair greasy, and can be used on wet or dry hair.

9/14/2026
5.0
verified purchase
Morrocanoil again for the win!

Once again - Moroccanoil for the win! This is amazing! I use it the nights before I wash my hair and it makes my hair look and feel so healthy and soft!

9/6/2026
5.0
verified purchase
A must have!!!

The Overnight Leave-In Hair Mask 50ml is amazing! It leaves my hair feeling incredibly soft, smooth, and hydrated by morning. It smells so good and makes my hair look healthier, shinier, and much more manageable!

9/3/2026
5.0
verified purchase

I’ve been loving this overnight hair mask! My hair felt noticeably softer and more hydrated after using it, and I really like that it’s lightweight and doesn’t leave my hair feeling greasy or coated. It also helped with frizz and made my hair look smoother and healthier the next morning

8/30/2026
5.0
verified purchase
A must have in my routine!!

I love the hair mask. It’s super lightweight and hydrating. I applied it before I went to bed and hope up with healthier-looking hair. The tube is also a great size for traveling. I love how it mixes oil and hyaluronic acid!

8/30/2026
5.0
verified purchase
A must-have overnight hair fix

This overnight leave-in hair mask has become a staple in my routine. A little goes a long way, and it absorbs nicely without leaving hair greasy. In the morning my hair feels noticeably softer, smoother, and more hydrated, with less frizz throughout the day. The scent is pleasant without being overpowering. Great option if you want an easy, low-effort way to add moisture to dry or damaged hair overnight. Would definitely recommend trying it.

8/25/2026
5.0
verified purchase
Easy Peasy!

I’ve used this a few times now, and I absolutely love it. It tames the frizzies, makes my curls look healthier and more smooth, and gives my hair that polished look I want without extra effort. My favorite part is that it’s leave‑in. I just put it on before bed and that’s it. No rinsing, no heavy feel, no mess. By morning, fixing my hair is easy — a quick spritz of water and my curls bounce back looking gorgeous. The scent is another highlight — slightly sweet and comforting, kinda like summer in a tube! It’s noticeable when I apply it, but not so strong that it interferes with my sleep. I like how it makes my mornings simpler and my curls look fresh without me having to fuss.

8/25/2026
5.0
verified purchase
Loving how soft, smooth and healthy my hair looks

I’ve been using the overnight leave in mask and I love the results. My hair feels more hydrated, looks shinier, and has less frizz. It’s lightweight and doesn’t leave my hair feeling sticky or leave any residue on my pillows.

8/25/2026
5.0
verified purchase

I love this hair mask for my long, fine, dry, and colored hair. I apply an about hazelnut size amount every few nights and work it properly into my hair, mostly my tips and then up. It absorbs fast, isn't sticky, and doesn’t leave any residue. In the morning, my hair looks and feels less dry. At the same time, it is smoother and shinier. But it doesn't make my hair greasy or take away any volume. So all in all, a big win.

8/25/2026

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